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Polypyrrole decorated cobalt carbonate hydroxide on carbon cloth for high performance flexible supercapacitor electrodes

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Abstract
Polypyrrole decorated cobalt carbonate hydroxide on carbon cloth (PPy@CoCH/CC) has been synthesized by a simple and cost-effective hydrothermal method. The prepared PPy@CoCH/CC exhibits unique 3D hierarchical nanostructure, showing uniform decoration of PPy nanoparticles on CoCH nanosheets. The PPy@CoCH/CC composites exhibit enhanced electrochemical performances due to the enhanced electrical conductivity, pseudocapcitive behavior, and efficient ion transport of PPy. Specifically, The PPy@CoCH/CC composites show high specific capacitance of 1217 F.g(-1) at a current density of 1 A.g(-1) and a good cycling performance of 89% capacity retention after 8000 cycles. In addition, a symmetric supercapacitor is fabricated using the PPy@CoCH/CC composites as both positive and negative electrode. The prepared symmetric supercapacitors deliver a high energy density of 47.36 Wh.kg(-1) at a power density of 1600 W.kg (-1). (C) 2021 Elsevier B.V. All rights reserved.
Author(s)
왕일농황해길최원묵
Issued Date
2021
Type
Article
Keyword
CapacitorsCarbon clothCarbonatesCobaltCobalt carbonate hydroxideElectric propertiesElectrical conductivityHydroxidesPolypyrroleSupercapacitorTextile fabrics
DOI
10.1016/j.jallcom.2021.161171
URI
https://oak.ulsan.ac.kr/handle/2021.oak/9241
https://ulsan-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=TN_cdi_gale_infotracacademiconefile_A676491621&context=PC&vid=ULSAN&lang=ko_KR&search_scope=default_scope&adaptor=primo_central_multiple_fe&tab=default_tab&query=any,contains,Polypyrrole%20decorated%20cobalt%20carbonate%20hydroxide%20on%20carbon%20cloth%20for%20high%20performance%20flexible%20supercapacitor%20electrodes&offset=0&pcAvailability=true
Publisher
JOURNAL OF ALLOYS AND COMPOUNDS
Location
스위스
Language
영어
ISSN
0925-8388
Citation Volume
886
Citation Number
1
Citation Start Page
161171
Citation End Page
161171
Appears in Collections:
Engineering > Chemical Engineering
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